Optimal design of orders of DFrFTs for sparse representations

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Optimal design of orders of DFrFTs for sparse representations

This study proposes an optimal design of the orders of the discrete fractional Fourier transforms (DFrFTs) and construct an overcomplete transform using the DFrFTs with these orders for performing the sparse representations. The design problem is formulated as an optimisation problem with an L1-norm...

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Bibliographic Details
Main Authors:	Zhang, X., Ling, B., Tao, R., Yang, Z., Woo, W., Sanei, S., Teo, Kok Lay
Format:	Journal Article
Published:	The Institution of Engineering and Technology 2018
Online Access:	http://hdl.handle.net/20.500.11937/71859

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